After racing in a hare scramble today, I realized that my drives side lower control arm is bent. Should I replace this or just not worry about it.

 

Good question, I might either try to bend the other to match or straighten in a press. Some guys run bent arms to get more clearance. I'd also check front end alignment. I run big 30" Mudzillas, heavy and hard tires, couple times have bent a tierod from whacking a rock too hard, just took off and straightened, too cheap to buy a new one.